For 15% to 30% of people with long-term lower back pain, one of the sacroiliac (SI) joints, which connect the pelvis with the spine, is the source. But it’s not always easy for people or their doctors ...
Q. What is the SI joint? A. The full name is the sacroiliac (sa-krÅ-ˈi-lÄ“-ËÅ’ak) joint, and there are two of them, one on either side of your tailbone. They connect the triangular bone at the base of ...